Run to the end of the footbridge and jump onto the bowl. Then use the second part of the footbridge to pass to the opposite side of the room.
You will find yourself in the second room with gears. Pull out one of them with the line. To do this, press button [E] few times.
Than activate the mechanism on the right side. The cracken's tentacle will move away. When this happens, use the column on the right side and narrow ledges to move down.
Go back to the footbridge and go behind the huge statue. From there jump on the vertical wall.
Begin move right and after a while jump in the direction of the terrace with chains.
Switch the lever and the mechanism will pull up the bowl with spikes.
Now use the pistols [Z] to shoot the damaged chain links on both sides.
When you do this, the bowl will fall on the cracken and kill it. Look right and shoot the hook in the direction of the metal roundel.
Use the line to slip down. Open the big door with switch and go through it.
Use protruding stones to pass the first hole. You will find them on the left side.
To pass over the second hole, you will have to balance on the single board. When Lara leans on one of the sides, you will have to double, moving the controller on the other side.
In the next room, behind the closed door, you will find artifact. This is the Thor's Glove.